[FFmpeg-devel] [PATCH] api-example for libavfilter

Michael Niedermayer michaelni
Sat Dec 11 11:19:55 CET 2010

On Thu, Dec 09, 2010 at 11:23:00AM +0100, Tomas H?rdin wrote:
> On Wed, 2010-12-08 at 20:37 +0100, Nicolas George wrote:
> > L'octidi 18 frimaire, an CCXIX, Stefano Sabatini a ?crit :
> > > I'd prefer to avoid to rely on other FFmpeg libraries, currently lavfi
> > > only depends on libavutil, libavcore and libswscale, and API example
> > > should be minimal so should be as strict as possible in terms of
> > > requirements.
> > 
> > I think that illustrating how the filtering system interacts with the rest
> > of the libraries is important: which time base should be used, how to insert
> > an AVFrame in the system, etc.
> > 
> > See libavformat/output-example.c: to give a complete working example, before
> > outputing with libavformat, it scales with libswscale and encodes with
> > libavcodec.
> libavformat depends on libavcodec though, so it might as well use it.
> However, libavformat could use a pure remuxing example.

> I would also like to see a more pure libavfilter example that doesn't
> depend on libavformat and libavcodec. However, I don't think it has to

i agree, a pure libavfilter example is definitly needed

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